C3 Vette Registry - The Best Resource on the Net for C3 Vettes! C3 Vette
Forums -> C3 General Discussion
Not Logged In! Login or Register!  Users Online: 24 / Help 
Features  Find C3 Parts on ebay in only 2 or 3 clicks!  | Add YOUR C3 to the Registry

Supporting Vendors
CorvetteClothing.com
Volunteer Vette Products
VetteBookStore.com
Bair's Corvettes
Mid America Motorworks

C3 of the Month
None Current
Enter Yours Today!
Online C3 Show
13
C3s are Registered

Vanity Plates
1981 CPE
Burkey
Featured Links
Chevrolet Corvette Restoration Guide


Buy Now
Motor Trend - $5 for 12 issues.
Motor Trend
Only $5 for 12 issues.


Corvette from the Inside
Corvette from the Inside


Corvette 50th Anniversary
Corvette 50th Anniversary


Corvette by the Numbers
Corvette by the Numbers



| Hide Signatures and Profile Pics

 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page [1]  
4/28/14 9:17am - Original Message: 'Decoding the VIN for a 73 Corvette - 'Y' engine code?'
barwick27
Former Member
- Send Private Message


Joined: 4/27/2014
Posts: 8
Hi, I've just bought a 73 Corvette Convertible (my first one) and am a little puzzled by the VIN numbers... I have 1Z67Y3S400287 So using one of the online decoders I've worked out: 1 = Chevrolet Division Z = Corvette 67 = Convertible Y = ? I can only seem to find K,T, X or W. I know my car is a 350 Auto...but what doe the 'Y' mean 3 = 1973 S = Assembled in St Louis, MO 400287 = Production sequence (looks like it was the 286th car in 73) Many thanks in advance for any help Peter
 Reply Reply  Quote Reply w/Quote
 
Support C3VR!
Suport our advertisers
4/28/14 12:49pm - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
Where are you finding this "Y"? On the title, on the VIN plate on the windshield,or the door sticker(or all 3)?
There is no "Y" engine code for the year...perhaps you are mis-reading it, or there is something very fishy about the title/VIN tag.
The only  engines available for that year are the base engine, with a "J" code, the L-82 with a "T" code, and the big block 454 with the "Z" code. If you see anything other than one of those 3 codes on the VIN tag, something stinks.
Please look at the VIN tag carefully, and make sure you are not mis-reading it. A "T" letter can sometimes look like a "Y", depending on the font used.
Does the engine have painted steel valve covers? If so, it is the base L-48 engine("J" code) If it has finned aluminuminum valve covers, it is probably the L-82("T" code), but valve covers can be changed easily....however, most folks don't change from the L-82 valve covers to the plain-jane L-48 covers.

There is also a VIN stamped on the top side of the rear frame rail, just slightly behind the driver side rear tire. It takes some cleaning, and a mirror/light to see it, but it will also give the correct VIN.
Please look at your VIN tag on the windshield again closely and let us know what it says, and also check the door tag if it is still there, and readable. The two VINs should match.....
Thumbs Up

____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
4/28/14 1:31pm - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
manchestershark Lifetime Member
Lifetime Member
- Send Private Message


Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.

Joined: 10/31/2007
Posts: 1895
Thumbs Up   THANKS! Mr. Apple. You answered my concern as to where the VIN was on the frame.

____________________________________

Click on image for full view
 Reply Reply  Quote Reply w/Quote
4/28/14 1:43pm - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
 Frame VIN located HERE

Thumbs Up


Another view


____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
4/28/14 2:02pm - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
F4Gary Gold Member
Gold Member
- Send Private Message


Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.

Joined: 8/26/2006
Posts: 862
Also, didn't the L82 come with an aluminum intake manifold and emblems on the hood, vs an iron intake manifold and no emblems for the base engine?

Check the engine block stamping in front of the passenger cylinder head too.

|UPDATED|4/28/2014 11:02:24 AM (AZT)|/UPDATED|


____________________________________
 Reply Reply  Quote Reply w/Quote
4/28/14 2:26pm - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
Yup....luminuminum intake also. Not all small block '73-'74 cars had emblems on the hood...very few, actually. The big block cars did get 454 hood emblems, but few small blocks(L-82 ONLY) did. Good catch Gary!Thumbs Up

____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
4/28/14 2:58pm - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
barwick27
Former Member
- Send Private Message


Joined: 4/27/2014
Posts: 8
Sorry for not answering sooner but I was on a flight. I've sent a message to the previous owner who will check the various VIN numbers on the car against the title document. He still has the car as I'm waiting for a couple of quotes to transport the car from Ohio to California. It might be just human error on the title as it really did have a 'Y'. But the engine has chromed finned covers (well they look like chrome under the dust and dirt). So my guess is the 'Y' is actually a 'T' and someone wasn't wearing their glasses when writing out the title! I'll know more tonight. Thanks again for all the help. Peter

|UPDATED|4/28/2014 11:58:44 AM (AZT)|/UPDATED|


____________________________________
 Reply Reply  Quote Reply w/Quote
4/28/14 3:41pm - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
manchestershark Lifetime Member
Lifetime Member
- Send Private Message


Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.

Joined: 10/31/2007
Posts: 1895
Clap  Mr. Apple, THANKS for the pics. That will make the search closer.

____________________________________

Click on image for full view
 Reply Reply  Quote Reply w/Quote
4/28/14 4:07pm - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
IF the title VIN does not match the vehicle VIN, you may be in for some trouble a the registration office, or if you get stopped for some reason by law enforcement. It's definitely possible that someone at the DMV had a typo on the title, but...that really needs to be corrected....you certainly don't wanna loose the car over a discrepancy like that. You may need to have the car inspected by the local State Trooper or DMV to verify the VIN tag, engine, and frame numbers on the car match. IF at least two of those match, they can correct the title and everything will be good. The engine number isn't as important in this case as the frame and VIN numbers, since the engine could have been changed for all you know.
Here's to hoping it's just a typo on the title. When I got the '74, and changed the registration to my name, they did that...put the wrong number in....as soon as I got the title back and saw that, I immediately contacted the DMV, and they fixed it.

____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
4/28/14 9:04pm - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
barwick27
Former Member
- Send Private Message


Joined: 4/27/2014
Posts: 8
Okay, I have the answer...the title was wrong, someone had written a 'Y' rather than a 'J', so it's a base engine with the chrome rocker covers...I was hoping it would have been the 'T'...but no worries, it's still a low milage convertible.

I know have the body plate details too...

Chevrolet A21, Trim 413 - Midnight Blue, Paint 922 - Medium Blue

I've asked the owner to change the title before I have the car picked up as it will be easier for him to do it than for me to explain to the local DMV.


____________________________________
 Reply Reply  Quote Reply w/Quote
4/28/14 10:35pm - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
barwick27
Former Member
- Send Private Message


Joined: 4/27/2014
Posts: 8
PIC 1

PIC 2

PIC 3



(modified large images to links-aapple)







|UPDATED|4/28/2014 7:35:19 PM (AZT)|/UPDATED|


____________________________________
 Reply Reply  Quote Reply w/Quote
4/28/14 10:41pm - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
HOLY MOLY!!! That's a big project! LOL
Are you getting all the parts to fix it, too? Looks like a lot of work! But then again....I'm lazy, so......LOL

A21 is the body build date, which is August 21 of '72...1st or 2nd day of the '73 model year production. Sure hope the PO can get the title taken care of. Other than the front end, it's not a bad lookin car. Thumbs Up


____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
4/28/14 11:27pm - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
manget1 Lifetime Member
Lifetime Member
- Send Private Message


Indianapolis, IN - USA

Vette(s):
Silver 1974 Convertible - L82 4 speed Low miles (was only 8,900 when I bought it in March 2006) - Now 42K miles. Original owner bought it as an investment for son's college expenses. 2008 Jetstream Blue Convertible - DAILY DRIVER!!

Joined: 9/3/2006
Posts: 2382
I agree with Joel on both counts - good looking car other than the front end; and DON'T buy that car until the title is correct!!! As you said, it's going to be a lot easier for him to get it fixed than you

____________________________________
I wanted a Corvette my whole life, but I never dreamed of all the wonderful people I would meet because of it!

      States Visited Map

target=_blank>Click for another pic!     And yet another!
 Reply Reply  Quote Reply w/Quote
4/29/14 7:21am - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
barwick27
Former Member
- Send Private Message


Joined: 4/27/2014
Posts: 8
The interior is not bad either




(modified large images to links-aapple)


|UPDATED|4/29/2014 4:21:19 AM (AZT)|/UPDATED|


____________________________________
 Reply Reply  Quote Reply w/Quote
4/29/14 9:18am - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
barwick27
Former Member
- Send Private Message


Joined: 4/27/2014
Posts: 8
Good news, the title has been corrected this morning and now matches the car...it wasn't as painfully as I thought it might be.

____________________________________
 Reply Reply  Quote Reply w/Quote
4/29/14 12:31pm - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
 Clap Thumbs Up  Clap Thumbs Up   Clap Thumbs Up

Looks like someone put L-82 valve covers on it...bonus!
Does the seller have any of the parts you'll need to repair it?

btw...for anyone that is wondering, THIS shot Interior pic 2  is the perfect view to show how far the engine is off-set to the passenger side on these cars. Thumbs Up

|UPDATED|4/29/2014 9:31:11 AM (AZT)|/UPDATED|


____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
5/1/14 9:47am - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
barwick27
Former Member
- Send Private Message


Joined: 4/27/2014
Posts: 8
Hi Adam's Apple, yes, the previous owner has a lot of parts for the car. He bought a usable front end that needs a little work, but it's all there and can be repaired and used. He also bought a few NOS parts like the grill and nose to replace the damaged ones. I'm still going to have to source parts, plus I want to replace and fix anything that is past it's sell by date like weather seal, bushes...I may as well do it now while the car will be worked on and before I get it back on the road again.  

I'll post more photos when I actually have the car and parts.

Thanks again for all of the help, suggestions and comments

Peter


____________________________________
 Reply Reply  Quote Reply w/Quote
5/1/14 12:42pm - Reply: 'Re: Decoding the VIN for a 73 Corvette - 'Y' engine code?'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19449
 Thumbs Up Good to hear.....that'll save ya plenty of time looking! Good luck with the project, and we're all here to help with any questions. Tongue

____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page [1]  
 Forums -> C3 General Discussion
(Moderator: Adam Wartell, Norsky, Adams' Apple)
 

 
Official C3 Vette Registry Community:
Home | Forums | Email | Who's Online | Clubs | Events | Member Stats

Other Official C3 Vette Registry Areas:
Members | Research | Shop | My Account | About C3VR
 

Corvette is a registered trademark of the General Motors Corporation(GM) & Chevrolet Motor Division. Vette Registries, LLC is responsible for all site content (except for member submitted content or where otherwise noted) and does not claim or imply that Chevrolet or GM is responsible for Official C3 Vette Registry content. Vette Registries, LLC is independent from GM and is not affiliated with, sponsored or supported by GM.  Copyright/trademark/sales mark infringements are not intended, or implied and are in fact used to support GM, Chevrolet and Corvette

Official C3 Vette Registry content is Copyright 2001-2017, Vette Registries, LLC. Content may not be reused without written consent. All Rights Reserved. NS

Corvette (Vette) Model Years on this site: 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 30